What to do if the ARCCAPTAIN CUT50 has no HF discharge rustling?
- KkimjeremyAug 2, 2025
If your ARCCAPTAIN Welding System shows the LED screen illuminating and the fan working, and the solenoid valve functions when the torch trigger is pushed, but there's no HF discharge rustling, it suggests a failure in the arc ignition part. This can be due to several reasons: 1) The interelectrode distance of the discharge nozzle being too long. 2) Leakage of the HF capacitor 222/15KV. 3) Damage to the MOSFET or the optocoupler on the HF board. 4) The input voltage being too low. Check these components to resolve the issue.




